Скачать работу в формате MO Word.
Computer System
A computer system is a collection of components that work together to process do.
The purpose of a computer system is to make it as easy as possible for you to use computer to solve problems. A functioning computer system combines hardware elements with software elements.
The
hardware Usually,
a computer system requires three basic hardware items: the central processor
unit, which performs all data processing; a terminal device, which helps
users to communicate with their computer system and a memory storing
programs and data. These three devices нare the required hardware components of
any computer system. Computer system includes many other devices: printer,
scanner and a modem. These computer devices called hardware. A set of
instructions telling a computer what to do is a program. Programs
are usually written in a Programming languages like Pascal, C++, etc, they
(programs) deal with are organized into files. Applications are programs for
specific tasks. Applications
include: database soft, spreadsheets calculations, word-processing on a word
processor. To function hardware and software, a computer needs an operation
system program. Some
operation systems require users to type in commands to tell the computer the to
do. Many
computers use a graphical interface or point-and-click interface such as
Windows. Some
interfaces allow plug-and-play, the possibility of connecting new hardware the
computer without having to adjust or configure the system to take the new
hardware into account: the interface program recognizes the hardware
automatically.